Music Victoria has a useful website section dedicated to sharing music industry job opportunities.
This is from the page:
Find the music job of your dreams. Check out the latest job listings related to the Victorian music industry encompassing First Nations, Music Business, Education, Production / Technical / Crew, Radio / Broadcasting, Retail / Hospitality / Front of House, Ticketing and Other (everything else). Updated twice a week.
Check out the website, here: https://www.musicvictoria.com.au/resources/jobs/